With a Franklin Sensors stud finder, you have the fastest, easiest, most accurate stud finder on the market. To operate the ProSensor M50, simply press and hold the button then place it on the wall and go. There is no calibration procedure. You can instantly find studs. Once you have it on the wall, the LEDs show you right where the stud is. When you move the unit back and forth, the ProSensor M50 continues to track the location of the stud which makes it easy to instantly see the edges and the center of the stud. Franklin Sensors stud finders are the most accurate stud finders because they have more sensors. Other stud finders typically have only 1 or 2 sensors. The M50 has 5. With Franklin Sensors' patented technology, you can find stud positions with unbeatable accuracy. The ProSensor M50 take two AA batteries. Do NOT use Rechargeable batteries. The M50 may also identify live wires. The ProSensor M50 is proudly made in the USA.

• ProSensor M50 Stud Finder. ACCURATE and EASY Center and Edge Finder with Intuitive LED Display for Wood and Metal.
• ACCURATE: More sensors = More accuracy. The ProSensor M50 has 5 sensors. Conventional stud finders have 1 or 2 sensors. With more sensors, Franklin Sensors stud finders are the market's most accurate and best stud finders.
• EASY: One mode finds it all! It finds wood studs, metal studs and the ProSensor M50 stud finder auto-selects the most accurate mode for changes in material or depth. No toggling between standard-scan and deep-scan.
• SHOWS THE CENTER AND EDGES OF STUDS SIMULTANEOUSLY: The ProSensor M50 saves you time by showing you more of what is behind the wall. It displays the center and edges of studs simultaneously.
• NO CALIBRATION REQUIRED: To operate, just press and hold the button to instantly begin your scan.
• DETECTS WOOD AND METAL STUDS: The ProSensor M50 will identify any change in density - wood, or metal. No extra buttons or toggling.
• DURABLE: Designed for all users from homeowners to DIY enthusiasts to professionals, the ProSensor M50 stud finder is accurate and durable. It saves you time while still being tough enough to withstand being dropped off a ladder or tossed into a toolbox.
• EXTRA FEATURES: Live Electrical Warning